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Old January 29th 14, 04:51 AM posted to rec.radio.amateur.antenna,sci.electronics.basics
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Default I have question about R L Mathematics

On Tue, 28 Jan 2014 20:34:21 -0600, amdx wrote:

Not sure where we have disagreement, do you disbelieve the 3,350ohms at
3.58MHz?


Yep. I am a heretic. You stated:
"I have measured the R at 3.85MHz, It is 3,350 ohms"
From where to where did you measure 3.35K, presumably with an ordinary
ohms-guesser?

If I short one end shield to center pin, and measure the other end
would that double impedance?
I'm going to find out.


It's like winding two turns on a toroid in opposite directions. The
inductances cancel and you get zero inductance. Replace the coax
cable with a single loop length of wire and see if it makes more
sense. Only turns that go AROUND the toroid in the same direction
provide useful inductances.

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Jeff Liebermann
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
 
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